An automobile mileage study tested the following hypotheses. Hypothesis Conclusion H 0: 25 mpg Manufacturer's claim supported H a: < 25 mpg Manufacturer's claim rejected; average mileage per gallon less than stated
For σ= 3 and a .02 level of significance, what sample size would be recommended if the researcher wants an 80% chance of detecting that μ is less than 25 miles per gallon when it is actually 24?

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b

(2,6)

step-by-step explanation:

cause i just did this and got the answer

you're welcome

what chart am i supposed to follow?

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function